In October, 1966, DuBay successfully organized a labor union for clergymen, the American Federation of Priests, and served as the organization's first president. The files consist of correspondence exchanged between DuBay and his followers regarding the union's formation, which was seen by church critics as a tremendous victory in the battle for reform. Included are letters of commendation directed at DuBay as well as several letters that criticize his actions; letters requesting information about the union and also requesting copies of its newsletter, The Union Priest; and DuBay's responses to these inquiries.